We're dividing 491011 by 15 
The aim is to understand the frequency of 15 in 491011.

Going ahead to step 1:
When dividing 4 by 15, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 15

Moving on to step 2:
49 divided by 15 is 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 45 from 49 and we're left with 4.
Fetch the next digit (1) from the dividend, attach it to 4 and continue: 41 / 15

Moving on to step 3:
If we divide 41 by 15, we get 2 and a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 32.0
If we subtract 30 from 41, we get 11.
Bring next digit (0) of the dividend behind the 11 and repeat the process: 110 / 15

On to step 4:
110 divided by 15 is 7 with a remainder of 5.
The next digit of our result is 7. 
Result so far: 327.0
Deduct 105 from 110 and we're left with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 15

Advancing to step 5:
15 goes into 51 3 times with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 3273.0
If we take 45 away from 51, we end up with 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 15

Moving on to step 6:
The number 15 fits into 61 4 times, leaving a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 32734.0
If we subtract 60 from 61, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
The number 15 fits into 10 0 times, leaving a remainder of 10.
The next digit of our result is 0. 
Result so far: 32734.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
100 divided by 15 is 6 with a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 32734.06
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
The number 15 fits into 100 6 times, leaving a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 32734.066
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 32734.066 with a remaining 0.001.